Players · P · Pitcher · 2026

PJ Poulin

Washington Nationals National League East

Age: 30
B/T: R/L
Height: 6' 1"
Weight: 195 lb
Number: #50

Born: July 25, 1996 in Marion, MA, United States
MLB debut: August 5, 2025
Drafted: 2018, round 11
College: Connecticut
High school: Tabor

dbWAR: .2
IP: 36.2
ERA: 2.70
FIP: 4.96
K/9: 6.1
FIP−: 119

PJ Poulin is a relief pitcher for the Washington Nationals. In 2026 he struck out 25 batters over 36.2 innings across 35 appearances, going 3-0. His ERA of 2.70 is 35.4% lower than the league average of 4.18 — the best on his team, and 63rd of 538 among MLB pitchers with 20+ innings. Stripping out defence, his 4.96 FIP suggests that his ERA had some help behind him. He missed bats on 16.9% of swings (6.8% of every pitch he threw), walked 13.7% of the batters he faced and struck out 16.3%. His 0.0 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2026.

FIP4.96

K/96.1

WHIP1.31

WAR.0

WAR by season

Pitching

Standard and advanced, by season.

																				Trend
2026	WSH	35	11	36.2	3	0	3	27	11	25	21	2.70	4.96	1.31	6.1	5.2	65	119	0.0
2025	WSH	28	0	24.2	2	1	1	23	10	27	13	3.65	3.82	1.46	9.9	4.7	88	92	0.2

Platoon splits

How left- and right-handed hitters fare against him.

Season

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	71	62	10	2	8	16	.161	.268	.306	.265	22.5%
vs RHB	82	69	17	2	13	9	.246	.366	.391	.341	11.0%

Pitch sequencing

What PJ Poulin throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter

SweeperFour-seamSinkerChangeup

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Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.

Season


Sweeper	35.3%	224	79.0	2,369	49.1%	29.0%	45	.178	.680
Four-Seam Fastball	29.8%	189	90.1	2,178	39.2%	9.9%	41	.220	.724
Sinker	23.1%	147	89.0	2,094	44.9%	5.6%	32	.156	.508
Changeup	11.8%	75	80.4	1,553	34.7%	13.8%	13	—	—

PJ Poulin's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

Head to head

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Similar players

Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.

Josh EknessMIA

ERA: 3.34
FIP: 4.65
SO: 23
WAR: 0.0

John SchreiberKC

ERA: 3.28
FIP: 4.63
SO: 40
WAR: 0.1

Ethan RobertsCHC

ERA: 4.21
FIP: 5.28
SO: 17
WAR: -0.2

Tyler PhillipsMIA

ERA: 3.34
FIP: 4.65
SO: 101
WAR: 0.4

How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.